Rinse the sago pearls under cold water until the water runs clear.

In a pot, bring 4 cups of water to a boil. Add the sago pearls and cook for about 30 minutes until translucent.

Once cooked, remove from heat and let it sit covered for 10 minutes. Drain and rinse under cold water.

In a blender, combine the diced mangoes, sugar, and lime juice. Blend until smooth.

In a bowl, mix the cooked sago pearls with coconut milk and sugar. Stir well.

To serve, layer the sago mixture and mango puree in serving bowls.

Chill in the refrigerator for at least 30 minutes before serving.